The application of the singular value decomposition algorithm in the digital watermarking technology
Zhong Yi-qing · 2008
The application of the singular value decomposition algorithm in the digital watermarking technology is proposed.The watermarking information with the bit transposition algorithm is encrypted,singular value decomposition to the original image is carryed out,and multiple redundant watermarking information in strange value territory makes the mathematical manipulation is embeded.The experiment results show that the method both enhance the watermark information content,and enable the watermark images to have very strong steadiness.It can withstand many kinds of attacks of rotating,cropping and so on.Watermarking confidentiality and robustness has been remarkably enhanced.